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Interferon was scarce and expensive until 1980, when the interferon gene was inserted into bacteria using recombinant DNA technology, allowing for mass cultivation and purification from bacterial cultures.
The cure for trichomoniasis is easy as long as the patient does not drink alcoholic beverages for 24 hours. Just a single dose of medication is needed to rid the body of the disease. However, without proper precautions, an individual may contract the disease repeatedly. In fact, most people develop trichomoniasis again within three months of their last treatment.
Aspirin is the most widely used drug in the world. It has even been recognized as such by the Guinness Book of World Records.
The Romans did not use numerals to indicate fractions but instead used words to indicate parts of a whole.
The horizontal fraction bar was introduced by the Arabs.

